Door-operating mechanism



Nv. 25, 1930. H. T. BLACK DOOR OPERATING MECHANISM 2 Sheets-Sheet l Filed Jan'."LO. 1930 1,11 v f, l

Nov.`25., 1930. n H. T. BLACK '1,782,982 l DOOR OPERATING MEGHANISI- Fned Jan. 1o, 1930 hmmm 2 Sheets-Sheet 2 ATTORNEY.

` Patented Nov. 215, `1930 11AM/*linzn T. nimmer l,LEXImensola;Nomarormoni v, ADoon.-ornnn'riiaef MECHANISM I l i i flThisinvention Arelates to agaragefor ether building Which l is ladapted to have-doors Which are .automatically swung open and i e automatically closed an autornobile orfotli 5` erfvehi'clejentering or being broughtout: 01' y the same.

doorsof a garage `andother"buildrigand "lo for Vlooking the'doors 1nv "position `When! an E automobile is stored therein.

i "Anotherob"ect1 of invention is tefpro fvideffa siinple andqirnproved door actuating fldevie which Inaybe installed Vat" moderate M151 expensefandfvvhich vvill automatically ac` A tuatfefto openfthedoors ofagarage and will fautoinaticallyoperate tof elosefthe doors" of `.the Tgarage bylthe pressure of :the Wheels of ranautomobile. t A f l *if my fsom fthe rejects of ilymantieni-iev- "Ming been stated otherobjects appearas Gethe oleseriptionf4 proceeds whenftakenin con" lilgure 2 is a cross-sectional viewftaken Figure -`Sis view taken along the sarne `opened position@ y a t i Figure 4 1s a perspective vievv 'lookingtrom v li'n'asin Figli` e2 butgshovving thedoorsin 4eL"the"inside"of the "garageand shovvingQthe 'for actuating the' doors.`

the guidinflr lneans at each end ofniy 1device i t* 0* ings `the numeral 1Q Aindicates-the "sidenwall "iporftions'of `a"`gar`ageand the n urneral 11 ini "l portion isindicatd bythe `reference characg ter`f12. l Atl thefront portion of side WallslO 1 455 thenventionaifdoors is @mirare Magee.

\ be"hinge`dly`connected inany desired inana i 1fAni'Geerprmyinmioa@ferrovie QQ fautomaticrmeansfor opening and closing the ire'itwto `he`understood"thatfthese doors can ing the car out of the sairie" a In front `-of the `garage"Ihafve1 the two i i Ways T21 a'ndfcifrA esired these run ways may be* extended to point AWhere they Ineet u each other;` and `in fact: tliesejrun `Ways 20 and Theeerun Waysvare provided to serve asafutomatic means "for C'supportingl the ear as 1t "is driven into and out off'thegaragw andbe` neath these runways rneans" arefprovided for openingfand closing'thedoorsflB and 14 Whichginechanisni comprises the"`cmpression Springs 24;*and125yivhich are secured to a base "plate 26 which is embedded inconcrete orlany othersuitable material 27 andthis concreteif f i' necessary can be 'extended inwardly'to `make figsaesz STATES .PATENT-OFFICE1;-

sired Vthelside` Walls caiilbe spacedfurtlier [apart andVshortA end Wallsu project inwardly to a point Where the doorsmay bedesired to fbehingedfgi Theside Wallet the garage 4on` one side thereofliasf` a smaller door 19 byi. 'y ineens ofivhi'ch access to the interiorjo'the garage may be had in order" to alloW the'` dijifv-` eroi the automobile tolpleavethe garage after Y thecar has been placedtherein and the doors l y lockedin positi'onand also toperinitthe drivco v .y

er to enter the garage A'or thepnrpose of talrq "21 be Ina-de all inone piece` and extend all theway across the entrance portion 22.`

a base to supportthefioor 12 off theugarage, ork

if desired the iloor12 Ina-y be dispensed With 4and the concreteinay serve as av Iioor;4 This base 26 has secured at each `end thereofa"rU "shaped member 28 asappearsin'Figure 5, and 1 to each 'endof the meIribers20`or `21as the case,

e p may be the downwardly projecting member Figure 5 `i s an'enlargedperspectivevievv of 29 is secured Whichfisadaptedtoslide Within the Ulshaped Iner'nbe`r28 to preventtheinembers 20 or` 21" from" tilting sidewise Whenthe Wheels of the automobile may be located? at y onesidethereof. fMounted onthe `base plate e 26`is a bearing `member 3Q, andinthis alever a dicates the rear VWallportion while thefloor 31 is pivoted as at`32, and theother end of this lever is pivoted as at 33 tofa belljcranklever 34` Which isinte'gral Vvvitha transversely dis-V posed shaft 35 which extends e all the Way across the entrance portion 22 ,s`o` as to connect- "the mechanisin" associated `with members 2O and 21 together for operation so thatif the:`

sociated with the other members or 2l will automatically operate both doors.

The member has a member 36 pivotally connected thereto as at 37, this member 36 being ixedly secured to the lower face of the members 20 or 21 as the case may be.

At each end of the shaft bell crank levers 40 and 41 are provided which project rearwardly and have links 42 and 43 secured thereto which links project upwardly and and have their free ends secured to the staples 47 which are secured in the doors 13 and 14.

Holes 5() and 51 are provided in the floor portion of the garage through which the levers 40 and 41 and the links 42 and 43 are adapted to operate. The shaft 35 is rotatably mounted in the bearing members 53 which are secured to the base plate 26 to rotatably support the shaft in proper' position. Secured to the lower side of members-20 and 21 and at the ends thereof are the link or chain members 55 which limit the upward movement of the members 20 and 21 so that they can not move upward beyond a given point, as the springs 24 and 25 normally force these members upwardly.

0n each of the base members 26 are secured by means of hinges such as 59 the block members 60 and 61, which are normally pulled backwardly to the position shown in Figure 2 by means of the tension spring 62, and to the other side of these block members 60 and 61 eye members 64 are secured and to these eye members the cord, cable, rod or other suitable member 66 vis secured, which runs forwardly and passes through channel portion 67 in the concrete beneath the ioor member 12 back to the transversely disposed channel 68 which `extends all the way across the garage, and in the base portion of this channel 68 is mounted a bearing member 69 in which a. rod 70 is rotatably mounted, and this rod 70 has upwardly projecting levers 71 fixedly secured thereto to which the other end of the cord, cable, rod or the like which is designated by the reference character 66 is secured. Near the central portion of the garage a. hole 7 4 is provided in the iloor 12 and a lever projects upwardly through this hole, the lower end of the lever is iXedly secured .to ,the transversely disposed shaft or rod 70.. This lever 75 is of such a length lso that the upperrend thereof is `adapted to press against the bumper or front axle of an automobile when. the same is driven into the garage, so that when 4the doors close in behind the automobile when it is driven `off of the members 2O or 21 and onto the floor portion 12, andthe doors are swung to closed position bymeans of thesprings 24and-25 pushing the mechanism backto the position shown in Figure 2, that the front axle or bumper of the au- 4tomobile will engage the lever 7 5 and push the sameto .the dotted line position lshown in Figure 2,.'and this Willelevate the block members 60 and 61 so as to prevent any other automobile or any other means from being placed on the ramp members 2O and 21 to open the doors. These block members 60 and 61 insure that the doors can not be opened as long as the automobile is within the garage and is driven against the lever member 75.

1t is thus seen that when an automobile is driven onto the ramp members 20 and 21 that it will depress one end thereof and this will cause the par-ts to assume the position shown in Figure 3 and will open the doors, and when the automobile is driven into the garage and off of the ramp members 2O and 21 the springs 24 and 25 will press the parts back to normal position as shown in Figure 2 and the doors will close due to the pressure exerted by springs 24 and 25.

1n the drawings and specification I have set forth a preferred embodiment of my invention, and although specific terms are employed they are used in a generic and `descriptive sense only, and not for purposes of limi tation, the scope of the invention being set forth in the appended claims.

1 claim:

1. Means for automatically opening and closing a door and locking the same in position when in closed position comprising a depress'ible platform, resilient means mounted beneath the platform adapted to normally press the same upwardly, means for limiting the upward movement of the platform, a lever pivotally mounted at one end t0 a iflXedobject, a transversely disposed shaft, a bell crank lever mounted on said first named transversely disposed shaft, the other end of said lever being slidably and pivotally connected with the said bell crank lever, said lever being pivotally connected intermediate its ends to the said platform, a second bell crank lever mounted on said transversely disposed shaft, a link connecting saidsecond bell crank lever with the said door, all of said means being adapted to automatically open the door when the platform is depressed and to close the door when the platform returns to normal position.

2. In a' building having a plurality 0f swinging doors, means for automatically opening and closing said doors and for locking the doors in closed position, said means comprising two ramps or runways on which the wheels of an automobile are adapted to be driven and supported, compression springs mounted beneath said ramps and being adapted to press the same upwardly to normal p0- sition, means for limiting the upward movement of said ramps, a transversely disposed shaft, means associated with said ramps and said shaft adapted to partially rotate said shaft when said ramps are depressed, means associated lwith said transversely disposed shaft and the doors .adapted to open 4the doors when the `ramp is depressed to Iimparta parp' means when pressed to the rearward to cause the ramp to be locked against depression `While the lever and raised position. v

tial revolution to the transversely disposed i shaft, said means being adapted to return to normal position to close the doorfwhen the ramp returns to normal position, a pivoted member mounted beneath said y ramp, and v having a connection leading tothe rea-r por-` tion of the building to `which Vsaid doors lare g Secured, a pivoted leveras'sociated With` said connection leading Afromsraid pivoted means,

said lever being adaptedl to raise the pivoted pivot-ed members are in 3. Means for upward movement of said ramp member,a

lever pivotally mounted at one end to a fixed support, a transversely disposed shaft, a bell crank lever on said transverselydisposed shaft, aA slidable andppivotal connection be# `tween said bell crank lever and said first named lever, means forseeurm-theinterma e lower porcliate portion of said lever -to t tion ofsaid ramp,` a second bell crank lever mounted on said transversely disposed shaft,

a link connecting the free end of said second bell crank lever to a doorof a garage,.said

parts being adapted to automatically open tlie `door when the ramp is depressed, and."

being adapted to automaticallyfclose the door When thera'mp. returns to normal position,

and means for locking the ramp "against de` pression when the doorsare in closed posi` tion. t

In testimony whereof IV aiiix my signature.` n HARVEY T. BLACK.

p automatically opening and closing a door comprising a resiliently supported rampmember, means for limiting the 

